• file
• revisions
• annotate
• diff
• comparison
• raw

test/tools/javac/6330997/T6330997.java@959103a6100f (annotated)

test/tools/javac/6330997/T6330997.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/**
aoqi@0	25	* @test
aoqi@0	26	* @bug 6330997 7025789
aoqi@0	27	* @summary javac should accept class files with major version of the next release
aoqi@0	28	* @author Wei Tao
aoqi@0	29	* @clean T1 T2
aoqi@0	30	* @compile -target 8 T1.java
aoqi@0	31	* @compile -target 8 T2.java
aoqi@0	32	* @run main/othervm T6330997
aoqi@0	33	*/
aoqi@0	34
aoqi@0	35	import java.nio.*;
aoqi@0	36	import java.io.*;
aoqi@0	37	import java.nio.channels.*;
aoqi@0	38	import com.sun.tools.javac.api.JavacTaskImpl;
aoqi@0	39	import com.sun.tools.javac.jvm.ClassReader.BadClassFile;
aoqi@0	40	import com.sun.tools.javac.main.JavaCompiler;
aoqi@0	41	import javax.tools.ToolProvider;
aoqi@0	42
aoqi@0	43	public class T6330997 {
aoqi@0	44	public static void main(String... args) {
aoqi@0	45	increaseMajor("T1.class", 1);
aoqi@0	46	increaseMajor("T2.class", 2);
aoqi@0	47	javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
aoqi@0	48	JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null);
aoqi@0	49	JavaCompiler compiler = JavaCompiler.instance(task.getContext());
aoqi@0	50	try {
aoqi@0	51	compiler.resolveIdent("T1").complete();
aoqi@0	52	} catch (Exception e) {
aoqi@0	53	e.printStackTrace();
aoqi@0	54	throw new RuntimeException("Failed: unexpected exception while reading class T1");
aoqi@0	55	}
aoqi@0	56	try {
aoqi@0	57	compiler.resolveIdent("T2").complete();
aoqi@0	58	} catch (BadClassFile e) {
aoqi@0	59	System.err.println("Passed: expected completion failure " + e.getClass().getName());
aoqi@0	60	return;
aoqi@0	61	} catch (Exception e) {
aoqi@0	62	e.printStackTrace();
aoqi@0	63	throw new RuntimeException("Failed: unexpected exception while reading class T2");
aoqi@0	64	}
aoqi@0	65	throw new RuntimeException("Failed: no error reported");
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	// Increase class file cfile's major version by delta
aoqi@0	69	static void increaseMajor(String cfile, int delta) {
aoqi@0	70	try {
aoqi@0	71	RandomAccessFile cls = new RandomAccessFile(
aoqi@0	72	new File(System.getProperty("test.classes", "."), cfile), "rw");
aoqi@0	73	FileChannel fc = cls.getChannel();
aoqi@0	74	ByteBuffer rbuf = ByteBuffer.allocate(2);
aoqi@0	75	fc.read(rbuf, 6);
aoqi@0	76	ByteBuffer wbuf = ByteBuffer.allocate(2);
aoqi@0	77	wbuf.putShort(0, (short)(rbuf.getShort(0) + delta));
aoqi@0	78	fc.write(wbuf, 6);
aoqi@0	79	fc.force(false);
aoqi@0	80	cls.close();
aoqi@0	81	} catch (Exception e){
aoqi@0	82	e.printStackTrace();
aoqi@0	83	throw new RuntimeException("Failed: unexpected exception");
aoqi@0	84	}
aoqi@0	85	}
aoqi@0	86	}